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Hillman 5/16 in. Diameter x 1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screw, 100-Pack

Hillman 5/16 in. Diameter x 1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screw, 100-Pack

Regular price $22.99 USD
Regular price Sale price $22.99 USD
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Grade 5 Zinc Steel Hex Head Cap Screws, 5/16" x 1/2" (100-Pack)

These Hillman Grade 5 hex head cap screws feature a heat-treated zinc finish for added strength and wear resistance. Ideal for fastening with a nut or into a tapped hole, they include a washer face under the head for a better seal and come partially threaded for versatile use.


Key Features:

  • Durable Grade 5 Steel: Heat-treated zinc finish resists wear and boosts strength
  • Hex Head with Washer Face: Provides a better seal and distributes load
  • Partially Threaded Shank: Ideal for applications requiring shear strength
  • Coarse Thread: Reliable hold for general-purpose fastening
  • Bulk 100-Pack: Convenient boxed packaging for shop or jobsite

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 1/2 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded
Number in Package 100 pack
Packaging Type Boxed
Unit of Measurement Metric

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank, providing added shear strength.


Q: What tools are recommended for installation?
A: Tighten using a wrench or a drill with an appropriate hex socket.


Q: Do these have corrosion protection?
A: Yes, the heat-treated zinc finish offers wear resistance and basic corrosion protection.


Q: Can they be used with nuts?
A: Yes, they are designed for use with a nut or in a properly tapped hole.


Q: What thread type do they use?
A: Coarse thread for general-purpose fastening.


Crisp, Industrial Hardware with a Polished Edge

The cool zinc sheen and clean hex profile bring a refined industrial note to cabinetry, shelving, and custom furniture builds. The washer-faced head adds a subtle, intentional detail while improving performance. Pair with matte black brackets or raw oak for a balanced, modern contrast. A small but mighty essential that elevates craftsmanship and delivers dependable strength.


Upgrade your fastening projects with Hillman Grade 5 hex cap screws—add this 100-pack to your cart for strength, reliability, and a clean, professional finish.

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